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18 Cards in this Set
- Front
- Back
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Parts of a computer
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Input, CPU, main memory, secondary memory, output devices
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Goal of computer science
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To develop algorithms that can run on machines and solve problems
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Compiled vs interpreted
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In: analyzes and executes source code instruction by instruction
Com: Translates entire program into machine code first |
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steps in developing software
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1)Analyze problem
2)Determine specifications 3)Create design 4)Implement design 5)Test/Debug 6)Maintain the Program |
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names/identifiers
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all begin w/ _ or letter. Used to identify modules, functions, or variables.
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expressions
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The part of code that produces/calculates new data
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variables
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Name given to a value or expression so it can be referred to later.
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assignment statements
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An equals sign used to set a variable equal to an expression. Like putting a sticky note on a value.
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output statements
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<print()> or <.setText()>
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input statements
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input()
eval() .getText() |
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data types
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integers and floats
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accumulator variables
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a loop that continually changes the value of the variable to build a final value piece by piece
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representing numbers
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Stored as bits of 0/1 2^-31 to 2^31(-1). Floats can have a much larger range, but lose precision
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class
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A set of related objects. Used as a 'factory' to produce objects.
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method
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A function that lives inside an object. Used to manipulate that object.
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objects
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A program entity that has 1)data and 2)a set of operations to manipulate that data.
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GUI
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Provides visual elements for a user to interact with. (Windows/menus/buttons)
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module
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Any relatively independent part of a program. Also a file containing code that can be imported and executed.
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